Modular oven



FIG. 1 is a front isometric view of a modular oven, showing my new design;

FIG. 2 is a right end elevational view thereof, shown on a smaller scale;

FIG. 3 is a top plan view, shown on a smaller scale;

FIG. 4 is a rear elevational view thereof, shown on a smaller scale;

FIG. 5 is a front isometric view of a second embodiment of a modular oven;

FIG. 6 is a left end elevational view thereof, shown on a smaller scale;

FIG. 7 is a top plan view thereof, shown on a smaller scale;

FIG. 8 is a rear elevational view thereof, shown on a smaller scale. 

The ornamental design for a modular oven, substantially as shown and described. 